Preston, MN has a population of 1,383 and is the 13,161st largest city in the United States. The population density is 561 per sq mi which is 807% higher than the Minnesota average and 519% higher than the national average. The median age in Preston is 40 which is approximately 7% higher than the Minnesota average of 38. In Preston, 67% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 67% of Preston residents were born in Minnesota, 33% were born out of state, 0% were born outside of the United States and 0% were foreign born.